What's wrong with using prong collars?

if a prong or a collar a.k.a. shock collar is used correctly there is no reason that it causes damage to the dog neck .very low level stim along with a pinch collar and a leash can be used to teach Dogs skills and gradualy you back away from both things once the dog has mastered the skill. That being said they can be very dangerous with someone who doesn't know how to use them . I have usedthem on everything from police dogs to search and rescue dogs as well as regular pet clients and have never ever ever had an issue .please pardon any brevity are typos sent from my iPhone

The benefits of prong collars are:

Immediate responsiveness from the dog

The amount and level of pressure or correction is drastically lower than with other tools

Tends to create far less physical damage than any other type of dog collars

Now the downsides for this type of dog collar are:

In certain situations the level of discomfort can increase a dog’s aggressive response.

If not used properly; it can create serious psychological and physical damage.

It creates one of the highest levels of stress in dogs among different dog training tools

One of the reasons most dog owners choose prong collars, choke collars or gentle leads is to address walking and pulling issues. If this is your reason then you are on the wrong path. Using one of the tools above may only temporarily fix your issue, or it may solve the problem only as long as the tool is applied.

TIP: As soon as you change the collar, the dog will go back to pulling, remember that any training aids are there to help you while training your dog, used on their own, they only provide a temporary solution when the tool is applied.

Personally, I am against using prong collars, choke chains and e-collars. That said, I don't believe they are always harmful or dangerous, and I don't judge others for using them; I simply believe that if the same ends can be achieved with a safer method, I'll always choose the safer method. Prong collars work by placing uncomfortable, or even painful, pressure around the neck when a dog pulls. The theory is that if a dog pulls and experiences discomfort or pain as a result, they'll be less likely to pull in the future. The reality is that the situation is always far more complex, and many dogs learn to associate the unpleasant feeling with other things in their environment, like other dogs or people. This can lead to issues with fear or aggression if not handled properly. There's also an increased risk of injury. Dogs have pretty strong necks, but prong collars and their ilk can still cause damage, both acute (like a puncture or crush injury) and long term (such as build up of scar tissue or collapsing trachea). Even though prong collars can be used safely, they will never have as low a risk of injury as a properly fitted flat collar or harness. Finally, while punishment can be very effective at teaching a dog what not to do, it doesn't teach a dog what you want them to do instead. I prefer using equipment that has the lowest risk of behavioral or medical complications, paired with reward based methods that focus on teaching the dog what you want them to do. It just makes training more fun for everyone involved, and why choose a method based primarily on correcting errors when you could choose a method based primarily on rewarding successes?